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Proceedings Paper

Cavity optomechanics with 2D photonic crystal membrane reflectors
Author(s): Navin B. Lingaraju; Yichen Shuai; John Lawall
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Paper Abstract

Membranes made from silicon nitride have significantly higher mechanical Q-factors under tensile stress than those made of other dielectric materials. This makes them ideal candidates for membrane reflectors that provide high finesse in Fabry-Perot cavities or membrane-in-the-middle optomechanical systems. Building on our previous work with one-dimensional gratings on suspended membranes, we patterned two-dimensional photonic crystal gratings on monolithic, suspended membranes made from silicon nitride. These high-Q membranes exhibited high reflectivity, upwards of 99%, over several nanometers in the telecom band. To probe their optical response in a cavity environment, we used these membrane reflectors as the moving mirror in a Fabry-Perot cavity. We were able to realize cavities with a finesse of over 4,500.

Paper Details

Date Published: 15 March 2016
PDF: 8 pages
Proc. SPIE 9757, High Contrast Metastructures V, 97570T (15 March 2016); doi: 10.1117/12.2211820
Show Author Affiliations
Navin B. Lingaraju, Univ. of Maryland, College Park (United States)
National Institute of Standards and Technology (United States)
Yichen Shuai, Univ. of Maryland, College Park (United States)
National Institute of Standards and Technology (United States)
John Lawall, National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 9757:
High Contrast Metastructures V
Connie J. Chang-Hasnain; David Fattal; Fumio Koyama; Weimin Zhou, Editor(s)

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